젓갈 및 젓갈대용 부재료 첨가 김치의 유기산 및 핵산관련 물질의 함량

The Contents of Organic Acids, Nucleotides and Their Related Compounds in Kimchi Prepared with Salted-Fermented Fish Products and Their Alternatives

  • 발행 : 2003.10.01

초록

젓갈류(멸치액젓, 멸치육젓, 저염멸치액젓, 저염까나리액젓 및 새우젓)와 젓갈대용물(굴 가수분해물, 명태육 가수분해물 및 청각 추출물)을 첨가하여 제조한 김치를 20, 10 및 $4^{\circ}C$에서 숙성 중 pH, 총산도를 측정하고 pH 4.2와 산도 $0.6{\sim}0.8%$를 고려한 온도별 적숙기에서의 유기산 및 핵산관련물질을 정량하였다. 그 결과, 젓갈류 첨가 김치의 온도별 숙성 중 pH는 적숙기까지 대체로 빠른 감소를 보인 반면 산도는 빠른 증가를 보였다. 시험구별 적숙기에서 acetic acid와 lactic acid는 0일차 대비 대체로 다소 높은 함량을 보였으며 malic acid는 $20^{\circ}C$에서, succinic acid는 $10^{\circ}C$에서 비교적 높은 함량이었다. ATP, ADP 및 AMP는 0일차 대비 대체로 낮거나 비슷한 수준인 반면, IMP 및 HxR은 숙성에 따라 다소 높은 함량을 보였다. 젓갈대용물 첨가 김치의 경우, pH 및 산도는 젓갈류 첨가 김치에서와 유사한 경향이었다. 시험구별 적숙기에서 acetic acid 및 lactic acid는 0일차 함량 대비 다소 높았고 malic acid는 증감하였으며 succinic acid는 0일차에서도 상당량 검출되었다. ATP 및 ADP는 굴 및 명태육 가수분해물 첨가구에서 0일차 대비 다소 높은 반면 다른 시험구에서는 대체로 다소 낮은 함량이었다. AMP도 $20^{\circ}C$$10^{\circ}C$ 숙성에서 ATP 및 ADP의 경우와 유사한 경향이었다. IMP는 대조구 및 청각추출물 첨가구에서 0일차 대비 대체로 낮은 함량인 반면 굴 및 명태육 가수분해물 첨가구는 대체로 높았다. HxR은, 대조구와 젓갈류 첨가구 및 굴가수분해물 첨가구에서 0일차 대비 대체로 높은 함량이었다. 결론적으로, 김치의 숙성시 숙성 온도와 젓갈류 및 젓갈대용물 등의 부재료가 김치의 숙성을 결정하는 주요 영향요인일 뿐만 아니라 김치의 정미성분으로서 유기산과 핵산관련물질의 함량패턴에도 영향을 미치는 것으로 나타났다.

Organic acids, nucleotides and their related compounds (NRCs) of kimchi prepared with salted-fermented fish products (SFFPs) and their alternatives were analyzed at each optimal fermentation (pH $4.2{\pm}0.2$, acidity $0.6{\sim}0.8%$) during fermentation at 20, 10 and $4^{\circ}C$, respectively. The pH and acidity levels of kimchi sharply decreased and increased, respectively until each optimal fermentation period. The levels of organic acids and NRCs in SFFP kimchi were affected by fermentation temperature and the type of additive. Compared with the control, organic acid levels were slightly higher in kimchi with alternative additives, as were NRC rates in kimchi with hydrolysates of oyster and Alaska pollack. Moreover, slightly higher levels of NRC were observed in kimchi with alternative additives than in kimchi with SFFPs. Consequently, these results show that fermentation temperature and the type of additive (SFFPs and their alternatives) affect not only fermentation, but the levels of organic acids and NRCs in kimchi.

키워드

참고문헌

  1. Cheigh, H.S., Kim, J.I., Min, B.T., Jeon, J.T., Kong, Y.H., Hong, J.J. and Kim, N.Y. Classification and review of the literatures on kimchi (III). Sci. Technol. Kimchi 8: 105-131 (2002)
  2. Choi, S.Y Research literatures on kimchi from 1955 to 1996. Food Ind. Nutr. 1: 88-101 (1996)
  3. CODEX, Proposed draft codex standard for kimchi. Food Ind. Nutr. 1: 22-34 (1996)
  4. Kim, M.H., Shin, M.S., Jhon, D.Y., Hong, Y.H. and Lim, H.S. Quality characteristics of kimchis with different ingredients. J. Korean Soc. Food Nutr. 16: 268-277 (1987)
  5. Park, W.P. and Kim, Z.U. The effect of salt concentration on kimchi fermentation. J. Korean Agric. Chem. Soc. 34: 295-297 (1991)
  6. Park, W.P. and Kim, Z.U. The effect of seasonings and salted-fermented fish on kimchi fermentation. J. Korean Agric. Chem. Soc. 34: 242-248 (1991)
  7. Park, W.P. and Kim, Z.U. The effect of seasonings and salted-fermented fish on kimchi fermentation. J. Korean Agric. Chem. Soc. 34: 249-257 (1991)
  8. Choi, S.Y., Lee, M.K., Choi, K.S., Koo, Y.J. and Park, W.S. Changes of fermentation characteristics and sensory evaluation of kimchi on different storage temperature. Korean J. Food Sci. Technol. 30: 644-649 (1998)
  9. No, H.K., Lee, S.H. and Kim, S.D. Effects of ingredients on fermentation of chinese cabbage kimchi. J. Korean Soc. Food Nutr. 24: 642-650 (1995)
  10. Kim, S.B., Lee, T.G., Park, Y.B., Yeum, D.M., Kim, O.K., Byun, H.S. and Park, Y.H. Characteristics of angiotensin-I converting enzyme inhibitors derived from fermented fish product, 1. Characteristics of angiotensin-I converting enzyme inhibitors derived from salted and fermented anchovy. J. Korean Fish. Soc. 26: 321-329 (1993)
  11. Ji, C.I., Lee, J.H., Park, D.C., Gu, Y.S., Kim, I.S., Lee, T.G., Jung, K.J., Park, Y.H. and Kim, S.B. Angiotensin converting enzyme inhibitory activity in peptic hydrolysates of cooking discards from anchovy factory ship. Korean J. Food Sci. Technol. 34: 529-532 (2002)
  12. Kim, D.S., Park, D.C. and Do, J.R. Angiotensin I converting enzyme inhibitory activity of krill (Euphausia superba) hydrolysate. J. Fish. Sci. Technol. 5 : 21-27 (2002) https://doi.org/10.5657/fas.2002.5.1.021
  13. Park, D.C., Park, J.H., Gu, Y.S., Han, J.H., Byun, D.S., Kim, E.M., Kim, Y.M., and Kim, S.B. Effects of salted-fermented fish products and their alternatives on angiotensin converting enzyme inhibitory activity of kimchi during fermentation. Korean J. Food Sci. Technol. 32: 920-927 (2000)
  14. Park, D.C., Park, J.H., Gu, Y.S., Han, J.H., Byun, D.S., Kim, E.M., Kim, Y.M., and Kim, S.B. Effects of salted-fermented fish products and their alternatives on nitrite scavenging activity of kimchi during fermentation. Korean J. Food Sci. Technol. 32: 942-948 (2000)
  15. Kim, H.O. and Rhee, H.S. Studies on the nonvolatile organic acids in kimchis fermented at different temperatures. Korean J. Food Sci. Technol. 7: 74-81 (1975)
  16. Lee, E.H. and Park, Y.H. Degradation of acid soluble nucleotides and their related compounds in sea foods during processing and storage, 1. Changes of nucleotides during drying process of the anchovy, Engraulis japanica. J. Korean Fish. Soc. 4: 31-41 (1971)
  17. AOAC. Official Methods of Analysis. 15th ed. Assoc. Offic. Anal. Chem., Inc., VA, USA (1990)
  18. Mheen, T.I. and Kwon, T.W. Effect of temperature and salt concentration on kimchi fermentation. Korean J. Food Sci. Technol. 16: 443-450 (1984)
  19. Kim, K.O. and Kim, W.H. Changes in properties of kimchi prepared with different kinds and levels of salted and fermented seafoods during fermentation. Korean J. Food Sci. Technol. 26: 324-330 (1994)
  20. Park, S.K., Cho, Y.S., Park, J.R., Moon, J.S. and Lee, Y.S. Changes in the contents of sugar, organic acid, free amino acid and nucleic acid-related compounds during fermentation of leaf mustard-kimchi. J. Korean Soc. Food Nutr. 24: 48-53 (1995)
  21. Park, Y.H., Jung, L.H. and Lee, S.S. Physicochemical characteristics of toha-jeot added cabbage kimchi during fermentation. J. Korean Soc. Food Sci. Nutr. 30: 426-431 (2001)
  22. Lee, E.Y., Moon, S.W., Park, W.S. and Choi, S.Y. Comparison of organic acids produced during fermentation of kimchi with lactic acid bacteria. Food Ind. Nutr. 1: 49-79 (1996)
  23. Kim, J.I., Choi, J.S., Kim, W.S. and Cheigh, H.S. Studies on identification and composition of nucleosides from mustard leaf and mustard leaf kimchi. J. Korean Soc. Food Sci. Nutr. 29: 796-801 (2000)
  24. Ryu, J.Y., Lee, H.S. and Rhee, H.S. Changes of organic acids and volatile flavor compounds in kimchis fermented with different ingredients. Korean J. Food Sci. Technol. 16: 169-174 (1984)